E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/04 (2006.01) E21B 17/02 (2006.01) E21B 47/01 (2006.01) H05K 7/00 (2006.01)
Patent
CA 2328196
The present invention provides an improved apparatus for mounting an electronic device such as a sonde therein for use in directional drilling. Such an apparatus includes an elongated housing having projections at opposite ends of the housing for connecting the housing to other components of the boring machine, an elongated internal chamber configured to receive an electronic device therein and having an elongated access opening which extends along an exterior surface of the housing, and a cover sized to close the access opening, the cover having a first hole extending therethrough. The housing includes a second hole which comes into alignment with the first hole when the cover is in a position to close the access opening, arid has a third hole at least partially intersecting the second hole, whereby when a pin having a head for holding down the cover is inserted in the first and second holes, a retainer such as a roll pin for engaging the pin may be inserted in the third hole in a manner effective to engage the pin so that the pin holds down the cover. According to preferred form of the invention, the pin preferably has an enlarged diameter head which seats against a step in the first hole to hold dow the cover, and a concave groove that comes into alignment with a round interior surface of the third hole when the pin is fully inserted so that the head engages the step. The retainer can then extend into the concave groove in the pin to prevent removal of the pin from the first and second holes. A side load sonde housing according to the invention has improved strength yet remains easy to open and close.
Earth Tool Company L.l.c.
Shapiro Cohen
LandOfFree
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